<div dir="ltr"><div>Hi,</div><div><br></div><div>I currently have a RISCV based 
processor for which I am compiling linux with buildroot and busybox. I 
am using BusyBox v1.31.1 and using RISCV 64 toolchain for compilation. 
Once the bootloader starters the kernel I see boot logs and all till 
buildroot login. Once I login and press any key it shows the following 
error message.</div><div><br></div><div><div><span style="background-color:rgb(255,255,255)"><span style="color:rgb(0,0,0)"><span style="font-family:monospace"><font size="2"><span style="font-style:normal;font-variant-ligatures:common-ligatures;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:left;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration-style:initial;text-decoration-color:initial;display:inline;float:none">Welcome to Buildroot</span><span style="box-sizing:inherit;display:block;height:8px;font-style:normal;font-variant-ligatures:common-ligatures;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:left;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration-style:initial;text-decoration-color:initial"></span><span style="box-sizing:inherit;display:block;height:8px;font-style:normal;font-variant-ligatures:common-ligatures;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:left;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration-style:initial;text-decoration-color:initial"></span><span style="font-style:normal;font-variant-ligatures:common-ligatures;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:left;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration-style:initial;text-decoration-color:initial;display:inline;float:none">buildroot login: root</span></font></span></span></span></div><div><span style="background-color:rgb(255,255,255)"><span style="color:rgb(0,0,0)"><span style="font-family:monospace"><font size="2"><span style="font-style:normal;font-variant-ligatures:common-ligatures;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:left;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration-style:initial;text-decoration-color:initial;display:inline;float:none"><br></span></font></span></span></span></div><div><span style="background-color:rgb(255,255,255)"><span style="color:rgb(0,0,0)"><span style="font-family:monospace"><font size="2"><span style="font-style:normal;font-variant-ligatures:common-ligatures;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:left;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration-style:initial;text-decoration-color:initial;display:inline;float:none">Password: <br><br># [just press any key you get the below unhandled signal]<br>[ 4471.577178] sh[98]: unhandled signal 11 code 0x1 at 0x00000000656c6976 in busybox[10000+aa000]</span></font></span></span></span></div><div><span style="background-color:rgb(255,255,255)"><span style="color:rgb(0,0,0)"><span style="font-family:monospace"><font size="2"><span style="font-style:normal;font-variant-ligatures:common-ligatures;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:left;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration-style:initial;text-decoration-color:initial;display:inline;float:none">[ 4471.903472] CPU: 0 PID: 98 Comm: sh Not tainted 5.5.0-rc1-00032-g264b43306b8c-dirty #2<br>[ 4472.208496] epc: 000000000004e3f2 ra : 000000000004e3b8 sp : 0000003fff8f3920<br>[ 4472.475585]  gp : 00000000000bbc90 tp : 0000003fdf386820 t0 : 0000003fdf3a3160<br>[ 4472.743682]  t1 : 0000000000017e3c t2 : 0000003fdf26e9fc s0 : 00000000000bd2a0<br>[ 4473.011749]  s1 : 0000000000000000 a0 : 00000000000c1f10 a1 : 0000000000000000<br>[ 4473.279785]  a2 : 0000000000000000 a3 : 0000000000000000 a4 : 00000000000bbe18<br>[ 4473.548950]  a5 : 00000000656c6966 a6 : 0000000000000000 a7 : 0000000000000000<br>[ 4473.817321]  s2 : 00000000000bbea0 s3 : 00000000000bd5e0 s4 : 0000000000000000<br>[ 4474.085784]  s5 : 0000000000000000 s6 : ffffffffffffffff s7 : 000000000009a000<br>[ 4474.354187]  s8 : 00000000000bd5e0 s9 : 0000000000090000 s10: 0000003fff8f3980<br>[ 4474.622222]  s11: 0000000000000015 t3 : 0000003fdf2d3a54 t4 : 0000000000000002<br>[ 4474.890136]  t5 : 0000000000000002 t6 : 00000000000bd808</span></font></span></span></span></div><div><span style="background-color:rgb(255,255,255)"><span style="color:rgb(0,0,0)"><span style="font-family:monospace"><font size="2"><span style="font-style:normal;font-variant-ligatures:common-ligatures;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:left;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration-style:initial;text-decoration-color:initial;display:inline;float:none">[ 4475.072753] status: 0000000200000020 badaddr: 00000000656c6976 cause: 000000000000000d<br></span></font></span></span></span></div><div><span style="background-color:rgb(255,255,255)"><span style="color:rgb(0,0,0)"><span style="font-family:monospace"><font size="2"><span style="font-style:normal;font-variant-ligatures:common-ligatures;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:left;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration-style:initial;text-decoration-color:initial;display:inline;float:none"><br></span></font></span></span></span></div><div><span style="background-color:rgb(255,255,255)"><span style="color:rgb(0,0,0)"><span style="font-family:monospace"><font size="2"><span style="font-style:normal;font-variant-ligatures:common-ligatures;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:left;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration-style:initial;text-decoration-color:initial;display:inline;float:none"><span style="font-family:monospace"><font size="2"><span style="font-style:normal;font-variant-ligatures:common-ligatures;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:left;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration-style:initial;text-decoration-color:initial;display:inline;float:none">Welcome to Buildroot</span><span style="box-sizing:inherit;display:block;height:8px;font-style:normal;font-variant-ligatures:common-ligatures;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:left;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration-style:initial;text-decoration-color:initial"></span><span style="box-sizing:inherit;display:block;height:8px;font-style:normal;font-variant-ligatures:common-ligatures;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:left;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration-style:initial;text-decoration-color:initial"></span><span style="font-style:normal;font-variant-ligatures:common-ligatures;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:left;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration-style:initial;text-decoration-color:initial;display:inline;float:none">buildroot login:</span></font></span></span></font></span></span></span></div><div><span style="background-color:rgb(255,255,255)"><span style="color:rgb(0,0,0)"><span style="font-family:monospace"><font size="2"><span style="font-style:normal;font-variant-ligatures:common-ligatures;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:left;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration-style:initial;text-decoration-color:initial;display:inline;float:none"><span style="font-family:monospace"><font size="2"><span style="font-style:normal;font-variant-ligatures:common-ligatures;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:left;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration-style:initial;text-decoration-color:initial;display:inline;float:none"><br></span></font></span></span></font></span></span></span></div><div><span style="font-family:arial,sans-serif"><span style="background-color:rgb(255,255,255)"><span style="color:rgb(0,0,0)"><font size="2"><span style="font-style:normal;font-variant-ligatures:common-ligatures;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:left;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration-style:initial;text-decoration-color:initial;display:inline;float:none"><font size="2"><span style="font-style:normal;font-variant-ligatures:common-ligatures;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:left;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration-style:initial;text-decoration-color:initial;display:inline;float:none">Any body have idea how to solve this issue?<br></span></font></span></font></span></span></span></div><div><span style="font-family:arial,sans-serif"><span style="background-color:rgb(255,255,255)"><span style="color:rgb(0,0,0)"><font size="2"><span style="font-style:normal;font-variant-ligatures:common-ligatures;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:left;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration-style:initial;text-decoration-color:initial;display:inline;float:none"><font size="2"><span style="font-style:normal;font-variant-ligatures:common-ligatures;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:left;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration-style:initial;text-decoration-color:initial;display:inline;float:none"><br></span></font></span></font></span></span></span></div><div><span style="font-family:arial,sans-serif"><span style="background-color:rgb(255,255,255)"><span style="color:rgb(0,0,0)"><font size="2"><span style="font-style:normal;font-variant-ligatures:common-ligatures;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:left;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration-style:initial;text-decoration-color:initial;display:inline;float:none"><font size="2"><span style="font-style:normal;font-variant-ligatures:common-ligatures;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:left;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;text-decoration-style:initial;text-decoration-color:initial;display:inline;float:none">Thanks.</span></font></span></font></span></span></span></div></div></div>